Based on this product's specifications, here are some alternatives and similar models
Protective case Lokithor JA EVA for JA301 JA302 — lightweight durable storage
Summary description:
Protective case Lokithor JA EVA designed for JA301 and JA302 devices. Made from EVA material for lightweight yet durable protection against scratches, bumps and minor shocks. Features fitted interior shape to hold the device securely and a zip closure for safe transport and storage. Suitable for carrying, storing and protecting your JA301/JA302 on trips or daily use.